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U-Smell-It Olfactory Test

$35.00

Test your sense of smell — simply by touch.

U-Smell-It × WTSA brings award-winning science to your fingertips. Developed by Yale neuroscientist and XPRIZE winner Derek Toomre, these rub-and-sniff cards offer an easy, accurate way to check your sense of smell at home, in the classroom, or at the clinic.

Rub each scent panel, identify what you smell, and record your results in the secure U-Smell-It portal. Over time, you’ll begin to see your sensory “signature” — valuable data that can help track recovery, detect change, or deepen awareness of one of your body’s most powerful early-warning systems.

• Rub-and-sniff format — no scratching required
• Multiple calibrated scents per card
• Works with the U-Smell-It online portal
• FDA-registered for smell-loss screening (not diagnostic)
• $5 from each $35 set supports WTSA research

Every purchase helps fund WTSA’s nonprofit research and public-education work to advance sensory science.

INSTRUCTIONS

Test your sense of smell — simply by touch.

U-Smell-It × WTSA brings award-winning science to your fingertips. Developed by Yale neuroscientist and XPRIZE winner Derek Toomre, these rub-and-sniff cards offer an easy, accurate way to check your sense of smell at home, in the classroom, or at the clinic.

Rub each scent panel, identify what you smell, and record your results in the secure U-Smell-It portal. Over time, you’ll begin to see your sensory “signature” — valuable data that can help track recovery, detect change, or deepen awareness of one of your body’s most powerful early-warning systems.

• Rub-and-sniff format — no scratching required
• Multiple calibrated scents per card
• Works with the U-Smell-It online portal
• FDA-registered for smell-loss screening (not diagnostic)
• $5 from each $35 set supports WTSA research

Every purchase helps fund WTSA’s nonprofit research and public-education work to advance sensory science.

INSTRUCTIONS

Warning Signals

Diseases & Conditions Linked with Loss of Smell Include:

  • Traumatic Brain Injury (TBI):

Severe head trauma can serve as an early warning sign, triggering loss or altered sense of smell as a prodromal symptom.

  • Cardiovascular Disease (CVD):

Early stages of CVD can exhibit olfactory dysfunction, including the loss of smell, offering a potential prodromal indicator of underlying vascular damage.

  • Infectious Diseases:

Various infectious diseases, including respiratory viruses like coronaviruses, can cause acute loss of smell, while those with Long COVID may experience loss or distorted (parosmia) smell.

  • Alzheimer’s Disease:

Olfactory dysfunction, such as loss of smell, often presents as an early prodromal symptom in individuals at risk of developing Alzheimer’s disease. 

  • Parkinson’s Disease:

Diminished sense of smell acts as an early warning sign, preceding motor symptoms, and serving as a prodromal indication of Parkinson’s disease.

  • Chronic Rhinosinusitis:

Long-lasting inflammation in the nasal passages and sinuses can manifest as an early warning sign, foretelling a potential decline in the sense of smell.

Note that this list is not comprehensive, and there are other conditions or factors that can also impact the sense of smell, including aging.  As smell loss can be due to multiple factors it should not be used alone to diagnose a specific disease or condition.  Further, the absence of an abnormal test result does not rule out diseases or other conditions. A person with olfactory dysfunction should consult with a healthcare professional.